Earliest issues of this publication. Very good. January through September 1935. Some articles: The structure of protoplasm (Seifriz); Glacial and Postglacial Vegetation (Sears); The Cytological Analysis of Species-Hybrids (Sax); Physiologic Specialization of the Parasitic Fungi (Reed); Reproduction and Life History in Diatroms (Geitler); The Gymnosperms (Chamberlain); Unstable Genes (Demerec); The Cytogenetics of Maize (McClintock and Rhoades); The Cytology of Host-Parasite Relations (Rice) and many others. *